Manifold-book and carbon therefor.



. Patented Sept. 30, i902. A. LEVISON.

MANIFOLD 800K AND CARBON THEREFUR.

(Application filed Feb. 25, 1902.)

(No Model.)

ATTORNEY.

UNITED STATES FATENT OFFICE,

ALEXANDER LEVISON, OF SANl FRANCISCO, CALIFORNIA.

MANIFOLD-BOOK AND CARBONITHEREFOR.

SPECIFICATION forming part of Letters Patent No. 710,160, dated September 30, 1902.

Application tiled February To all whom, it may concern:

Be it known that I, ALEXANDER LEvIsoN, a citizen of the United States, residing at San Francisco, in the countyof San Francisco and State of California, have invented certain new and useful Improvements in Manifold-Books and Cai-bons Therefor, of which the following is a specification.

My invention relates to improvements in manifold-books and carbous therefor, the object of my invention being to provide improvements in the manifold-book for which Letters Patent of the United States were granted to'me on February 25, 1902, said improvements including a new form of carbonpaper.

My invention therefore resides in the novel construction, combination, and arrangement of parts for the above ends hereinafter fully specified, and particularly pointed out in the claims.

In the accompanying drawings, Figure 1 is a perspective view of my improved manifoldbook, a number of sheets being turned up and the corner of the book being broken away to show the cardboard backing. Fig. 2 is a perspective view of the book, showing one of the record-sheets folded for use; and Fig. 3 is a perspective view of my improved carbon folded to show both a portion of the upper side and a portion of the lower side at the same time.

Referring to the drawings, it will be seen that my improved manifold-book is formed in sections, each section comprising in order first a carbon-sheet l of about two-thirds the width of the book, then below said carbonsheet 1 a number of record-sheets 2 of ordinary paper the full width of the book, then a sheet 3 of hard thick cardboard.

Each record-sheet 2 is divided into three parts by vertical lines of perforations 4, said parts having suitable printed mat-ter 5 and blanks formed by lines 6, whereon toinscribe the desired record. The carbon-sheets 1 are of sufficient width to extend over two of said parts, and in my present invention I also make the cardboard backing S to occupy the width of two of said parts. In my former construction, as set forth in said patent, it was found that the lowest sheet of each sec- 25,1902. Serial No. 95,618. (No model.)

tion was damaged by continued contact with and rubbing against the upper surface of the carbon-sheet belonging to the next section. By making the cardboard sheet 3 extend over two widths of the record-sheet I avoid this objection.

The record-sheets and the cardboard backings are attached to stubs 7 along lines of perforations S, so that they can be readily detached from said sides, and said stubs and the edges of the carbons are all bound together to form a book. The device is used in the same manner as set forth in my patent above referred to; but I providean improvement facilitating the det'aching of the recordsheet from the stubs. This improvement consists in forming in the upper edge of the whole book at the end of the lines of perforations connecting the sheets with thestubs a deep notch or groove, as shown at 9. This feature is important, because there being three lines of perforations for each record-sheet it required in my former construction some care in tearing off the sheet to insure that the record-sheet should be torn at first only along the line of perforations connecting it with the stub. The present construction facilitates tearing along this line. The inner edges of the inner part of the record-sheet are punctured with two holes lO to facilitate the filing of said inner part.

The carbon-sheets which I now use instead of being carbonized on both sides throughout their whole extent are carbonized on each side throughout the extent of one-half of said side only, and the carbonized part on each side has for its reverse on the other side a portion which is not carbonized. Thus the half of the carbon-sheet on the side next to the stub is plain or uncarbonized at the top, as shown at ll, and carbonized'at the bottom, as shown at 12, while the other half on the side away from the stub is carbonized at the top, as shown at 13, and plain or uncarbonized at the bottom, as shown at 14. It will be seen that with this construction when the carbon is folded and the record-sheet is folded twice in the same direction there will be a carbonsurface opposite only to the part of the recordsheet upon which it is intended to produce an impression or copy of the original writing IOO or record. Thus the back of each sheet is left perfectly clean of such carbon impressions. y

I claim- 1. A manifold-book composed of sections, each section comprising in order a sheet carbonized on both sides, a plurality of record- @Ording-sheets, each of said sheets outside the stubs being divided into a plurality of separable parts by weakened lines parallel to the line of binding, the carbon-sheet extending the width of' said parts except the outermost, said recording-sheets having stubs to which they are attached along lines of perforations, said stubs and one side of the carbon-sheets being all bound together to form a book, said book having in its upper edge in line with the perforations between the recording-sheets and the stubs, a semicircnlar notch to start thel tearing 0E of the recording-sheets, substantially as described.

In Witness whereof I have hereunto set my hand in the presence of two subscribing wit- DGSSGS.

A. LEVISON.

Vtitnesses:V

FRANCIS M. WRIGHT, BESSIE GORFINKEL. 

